Shutter mechanism for moving-picture machines.



P. W. HOGHSTE'ITER.

SHUTTER MECHANISM FOR MOVING PICTURE MACHINES APPLICATION FILED JUNE 20,1913.

2 SHEETS-SHEET 1.

1,115,538. Patented Nov. 3, 1914.

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F. W. HOGHSTETTER.

SHUTTER MECHANISM FOR MOVING PICTURE MACHINES.

APPLICATION FILED JUNE 20, 1913.

1,1 15,538. Patented Nov. 3, 1914.

2 SHEETS-SHEET 2.

UNITED [STATES PATENT OFFICE.

FREDERICK W. HOCHSTETTER, OF YORK, N. Y., .ASSIGNOB TO H. I. PATENTS ANDPROCESSES COMPANY, INCL, A CORPORATION OF NEW YORK.

SHUTTER HECHAITISM FOB MOVING-PICTURE MACHINES.

Specification. of Letters Patent.

Patented Nov. 3, 1914..

v Application flled l'une 20,1918. Serial No. 774,865.

To all whom it may concern:

Be it known that I, FREDERICK W. Hoolis'rn'rrrin, a subject of theEmperor of Germany, and aresident of New York, county and State of NewYork, have invented a certain new and useful Improvement 1n ShutterMechanism for Moving-Picture Machines, of which'the following is a full,clear, and exact specification,

This invention relates to a class of shutters adapted to be used inconjunction with machines for producing and exhibiting moving picturesin natural colors.

My invention has for its object primarily to provide ashutter mechanismdesigned to be employed in conjunction with a camera adapted forphotographing scenery, or otherobjects whereby the natural colorsthereof may be accurately recorded upon a sensitized plate, or film, andwhich is susceptible of being used with, a projecting apparatus fordisplaying the pictures when developed in their natural colors upon acurtain. or screen. This is accomplished mainly by providing arcciprocable shutter having a plurality of apertures in each of whichare mounted one, or a number of transparent plates, or slides of theprimary colors for guidance across the exposure window of the camerawhen the negative plate, or film is being produced as well as beingsubsequently directed in a corresponding manner across the exposurewindow of a projecting apparatus whenthe pictures re exhibited.

Another object of the invention is to provide means adapted to operatethe shutter mechanism simultaneously with the operation of the camera.orprojecting apparatus;

'and still another object of the invention is to provide means wherebyan intermittent movement may be imparted to the shutter during 1 itsreciprocation.

A further objectof the invention is to provide a shutter of simple andefiicicnt con struction wherein any desired number of the coloredtransparent slides may be emplo-yed. and which is adapted for use withequal facility in conjunction with a camera, or a projecting apparatus.

With these and other objects in view. the invention will be hereinaftermore particularly described with reference to the accompanying'drawings, which form a part of this specification, and will then bepointed out in the claims at the end oftthe description.

In the drawings, F1gure 1 is a front elevation of one form of shuttermechanism embodying my invention. Fig. 2 is a frag mentary section,partly'in detail, through the front portion of a camera, or projectingapparatus, showing a side view of the shutter mechanism applied thereto.Fig. 3 is a perspective view of the form of box used in the mechanism;Fig. 4 is a section taken on the line IIII of Fig. 1, and Fig. 5 is anenlarged fragmentary view, showing a front elevation of the disk camemployed in the mechanism for reciprocating the box, and forintermittently checking the box during its reciprocatory movement.

The shutter mechanism is designed to be applied to the front wall 1.0having an exposure window 11 of any well known, or preferred tyie ofcamera. or projecting apparatus used forproducing and exhibiting movingpictures of scenery, or other objects. and which are provided with aframing device 12- serving to yieldingly guide a film, as 13, and holdit intermittently for exposure before the window 11 when transmittedthrough the machine, the shutter mechanism and the machine beingoperable in unison by a common drive shaft, as 11, which may be drivenby a crank handle or otherwise.

The shutter mechanism has a casing 16 cmnposcd of a front wall 17 andspaced side walls 18 and 19 which are securedby screws, or otherwise tothe wall 10 of the camera. or projecting apparatus. In the front wall 17of the casing is a window 20 which is in register with the exposurewindow 11 of the mach-inc. and to said front wall 17 at'its vindow isheld a telescopic barrel 21 carrying one, or more of the usual lenses.as 22 and 23. At correspomliur parts of the inner surfaces .of the sidewalls 18' and 1?) of the casing 16 are vertically disposed grooves 21and 25. and at intervals through the side wall 19 are verticallydisposed pairs of spaced openings 26 and 26".

li'ithin the casing 16 is a re-i-iprocable box. as 27. which pro idesthe shutter proper of the mechanism. She box 27 is substantiallyrectangular in shape so as to provide a front wall 28. a rear wall 29,and two spaced side of the rear wall 29 is an aperture 32, and inregister with this aperture is an aperture 33 provided in the lower partof the front wall 28. Through the upper portion of the rear wall 29 isan aperture 34, and in register with this aperture is an aperture 35also provided in the front. wall 28. The apertures 32 and 33 form apassage through the box, and the apertures 34 and 35 form a secondpassage through the box. When the box 2'? is reciprocated in the casing16 and intermittently checked, as will be hereinafter more fullyexplainedpthe apertures 32 and 33 and the apertures 34 and 35 areadapted to be alternately registered with the exposure window 11 of themachinea-nd with the window 20 of the casing 16 for admittingtherethrough the rays of light when focused through the lenses 22 and23.1

In the inner surface of the upper, part of the side wall 30 of the boxare'two spaced parallel grooves 36 and 37 both of which are verticallydisposed, and also in the inner surface of the lower part of said sidewall .are two similar spaced vertically disposed parallel grooves 38 and39. Through corresponding parts of' the upper portion of the side wallof the box are 30 provided two spaced parallel vertically disposed slots40 and 41, and through the lower part ofthis side wall, at parts thereofcorresponding to the grooves 38 and 39 of the side wall 30, are twospaced parallel slots '35 42 and 43 which are also vertically disposed.

Each ofthe slots and one of the grooves are thereby arranged-in sets,and in one or more of the sets may be removably inserted a coloredtransparent plate, each ofwhich 4 is preferably of one of the primarycolors.

In this manner. the colored transparent plates will be disposedtransversely of the interiorofithe box 27 for being directed when thebox is reeiprocated' across the path of the rays of'li'ght focused fromthe lenses 22 an'd23 through the window 20of the casing 16, and adesirednumber of the trans parent plates either ofa single color, or ofdifferent separate colors may be used in con-1 junction with the shutterwhereby the natural colors of the objects may beefiectually recordedupon the sensitized film when being photographed as well as exhibitingthe pic; tures in life-like tints when projected upon a curtain In orderto permit the colored transparent plates to be inserted into, or removedfrom the sets of the slots and the grooves, the box 27 is moved inthe'casing 16 so that either the pairs of slots-40 and 41, or the pairsof slots 42 and 43 of theside.

wall 30 of the box are in register with one of the pairs ofthe openings26 and '26 of the casing 16. One, or more of the colored transparentplates 44- may then be inserted '65 through one or more of theopenings26 and 26 and into the sets of the slots and the grooves of thebox, or the colored transparent plates may be removed from the box in asimilar manner.

Serving as means to permit the colored transparent plates to be heldagainst accidental displacement when positioned in the sets of the slotsand the grooves of the box 27, upon the exterior of the side wall 30 ofsaid box and between the slots 40 and His pivoted a clip 45, and betweenthe slots 42 and 43 on the exterior of this side wall is pivoted asecond clip 46. The clips 45 and 46 are preferably of elliptical shapes,and said clips are of sufficient lengths, as shown, so that when rotatedaccordingly the opposite ends thereof will engage the edges of thecolored transparent plates when arranged in the box. 3

In the exterior-of the sidewalls 30 of the box 27 are spaced pockets, as47, and in similar parts of vthe exterior of the side wall 31 of saidbox are spaced pockets 48. The pocketsof each of the walls of the box 27are in register with each of the vertical grooves 24 and 25,respectively, of the side walls of the casing 16, and in each of saidpockets is a revoluble ball, as 49. The balls ofthe pocket 47 aremovablyseated inthe groove 24, and the balls of the pockets 48 at thesame time an intermittent movement to be imparted to said box, to a lug49*" provided on the underside of the box is pivoted one end of aconnecting rod 50 having an elongated opening 57' adjacent to its otherend. Through the opening 51 is re-' movably disposed a pin 51 rotatablyheldin the front wall of the camera, or projecting apparatus. ,At'thefree end of the rod 50 upon oneof its faces is a freely rotatableroller, or small wheel 52, and approximately midway of the rod 50 is asecond roller, or

small wheel 53. On the pin 51 is a cam disk 54. The cam 54 is rigidlyheld eccentrically upon the pin so as to be rotated therewith, and saidcam is positioned whereby its edge will contact .with bothof the rollers52 and 53 of the rod 50 so that-when revolvedby the rotation of the pina reciprocatory movemeIit will be imparted to the camf54and to theconnecting, rod 50. i The box 27 will in-turn be reciprocated in. thecasing 16 for directing its passages across the 'window' 20 of thecasing. The cam 54 has an irregularly curved edge whereby twodepressions, as 55 and 56, are formed in approximately opposite partsthereof so that during the revolutions of the cam the rollers 52 and 53will be received" therein, and the recipro catory movement of the cam 54and the connectin rod 50 as Well as the box 27 will be partial lychecked at intervals for intermittently registering the coloredtransparent plates 44 with the window 20 of the casing 16. In order topermit the shutter to be operated in unison with the operation of themechanism, as 56, of the camera, or projecting apparatus by the rotationof the drive shaft 1 on thepin 51 may also be rovided a bevel gear 57 inmesh with a evelgear 58 heldon'the drive shaft so that when the driveshaft is driven the shutter will be operated as above described.

In the foregoing description, I have embodied the preferred form of myinvention, but I do not wish to be understoodas limiting myself thereto,as I am aware that modifications may be made therein without de--parting from the principle, or sacrificing any of the advantages of thisinvention, therefore I reserve to myself the right to make such changesas fairly fall within the scope of the appended claims.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In a shutter mechanism of the character described,the combination with a moving picture machine havin window and a lensfor focusing light to the window, of a box havin a passage therethrough,said box being reciprocably mounted upon the machine so that its passagewill be guided across the rays of light when focused from the lens tothe exposure window, and means serving to impart a reciproca-torymovement to the box when the machine is operated and also intermittentlycheck the movement of the box when being reciprocated for successivelyregistering the passage thereof with the exposure window of the machine.a

2. In a shutter mechanism of the character described, the combinationwith a moving picture machine having an exposure window and a lens forfocusing light to the window, of a box having a plurality of spacedpassages therethrough, said box being reciproca ly mounted upon themachine so that its passages will be guided across the rays of lightwhen focused from the lens to the exposure window, and means serving toimpart a reciprocatory movement to the box when the machine is operatedand also intermittently check the movement of the box when beingreciprocated'. for alternately registering each of the passages thereofwith the exposure window of the machine.

3. In a shutter mechanism of the character described, the combinationwith a moving picture machine having an exposure an exposure Window anda lens for focusing light to the window, or a' box having a passagetherethrough, said box being reciprocably mounted upon the machine sothat its pas sage will be guided across the rays of light when focusedfrom the lens to the exposure window, means serving to impart areciprocatory movement to the boxwhen the inachine is operated and alsointermittently check the movement of the boxwhen being reciprocated forsuccessively registering the passage thereof with the exposure window ofthe machine, and a transparent colored plate removably disposed acrossthe passage of the box.

4; In a shutter mechanism of the character described, the combinationwith a moving picture" machine having an exposure window'and a lens forfocusinglight to the window, ,of a box having a passage therethrough,said box being reciprocably mounted upon'the machine so that its passagewill be guided across the rays of light when focused from the lens tothe exposure window, means serving to impart a reciprocatory movement tothe box when the machine is operated and also intermittently check themovement of the box when being reciprocated for successively registeringthe passage thereof with the exposure window of the machine, and aplurality of transparent colored plates removably disposed across thepassage of the box.

5. In a'shutter mechanism of the character described, the combinationwith a mov ing picture machine havin an exposure window and a lens forfocusing light to the window, of a box having a plurality of spacedpassages therethrough, said box being reciprocably mounted upon themachine so that its passage will be guided across the rays of light whenfocused from the lens to the exposure window, means serving to impart areciprocatory movement to the box when the machine is operated and alsointermittently checkthe movement of the box when-being reciprocated foralternately registering each of the passages thereof with the exposurewindow of the machine, and a plurality of transparent colored plates,one

eing removably disposed across each of the passages.

(in In a shutter mechanism of the character described, the combinationwith a moving picture machine adapted to be operated by the rotation ofa drive shaft, said machine having an exposure window and a lens forfocusing light to the window, of a box having a passage therethrough,said box being reciprocably mounted upon the machine so that its passagewill be guided across the rays of light when focused from the lens tothe exposure window, means serving to impart a reciprocatory movement tothe box, and a cam revoluble when the drive shaft is 7 In a shuttermechanism of the character described, the combination with a m'ovingpicture machine adapted to be operated by ther'otation of a drive shaft,said inachine having an exposure window and a lens for. focusing lighttothe window, of a, box having a passage therethrough, said box beingreciprocably mounted upon the machine so that its passage will be guidedacross the rays of light when focused. from the lens to the exposurewindow, means serving to impart a reciprocatory movement to the box, a

cam' revoluble when the drive shaft is ro tated for intermittentlychecking the movement of the reciprocatory means, wherebythe pa'ssage'ofthe box will be successively registered with the exposure window of themachme, and a transparent colored plate re- ,IOnovably disposed acrossthe passage of the 8. In a shuttermechanism of the character described,the combination with a movmg picture machine adapted to be operated bythe rotation of a drive shaft, said machine having an exposure windowanda lens for focusing light to the Window, of a box having a pluralityof spaced 'passages therethrough, said box being reciprocally mountedupon the machine so that its passages will be guided across the rays oflight when focused from the lens to the exposure window, means servingto impart a reciprocatory movement to the box, and a cam revoluble whenthe drive shaft is rotated for intermittently checking the movement ofthe reciprocatory means, whereby the passages of the box will bealternately registered with the exposure window of the machine.

9. In a shutter mechanism of the character described, the combinationwith a moving picture machine "adapted to be operated by the rotation'ofthe drive shaft, said machine having an :exposure window and a lens forfocusing light to the window, of a box having a plurality of passagestherethrough, said box being reciprocably mounted upon the machine sothat its passages will be guided across the rays of light when focusedfrom the lens to the exposure window, means serving toimpart areciprocatory movement to the box, a cam revoluble when the drive shaftis rotated for intermittently checking the movement of the reciprocatorymeans, whereby the passages of the box will be alternately registeredwith'the exposure window of the machine;

and a plurality of transparentcolored plates,

one being removably disposed across the passage'of the box. I

ing picture machine adapted to be operatedby the rotation of the driveshaft, said ma- ',chine having an exposure window and a lens forfocusing light to the window, of a box having a plurality of spacedpassages therethrough, said box being ,reciprocably mounted upon themachine so that its passages will be guided across the rays of lightwhen focused from the lens to the exposure window, means serving toimpart a reciprocatory movement to the box, a cam revoluble when thedrive shaft is rotated for intermittently checkingthe movement of thereciprocatory means, whereby the passages of ,the box will bealternately registered withthe exposure window of the machine, and aplurality of transparent colored plates, a. number of which beingremovably disposed across each of the passages of the box.

11. In a shutter mechanism of the character described, the combinationwith a moving picture machine adapted to be operated chine having, anexposure window, and a lens for focusing light to the window, of acasing provided upon the machine between the lens and the exposurewindow, said oasing having an aperture in register with the lens and theexposure window, a box having a plurality of spaced passagestherethrough, said box being reciprocably mounted in the casing so thatits passages will be guided across the rays of light when focused fromthe lens through the aperture of the casing and to the exposure window,anti-friction bearings provided between the walls of the box and thewalls of the casing, a connecting rod pivoted to the box, two pacedrollers provided upon the rod, and a cam held upon the drive shaft so asto be rotated therewith, said cam having an irregularly curved peripheral edge and being movably arranged between the rollers of theconnecting rod so as to contact therewith at intervals for reciprocatingthe" connecting rod and the box in the casing and for alsointermittently checking the movement of the box whereby the passages ofthe box will be alternately registered with the exposure window of themachine and with the aperture ofthe casing.

12. In a shutter mechanism of the character described, thecombinationwith a moving picture machine adapted to be operated by therotation of a drive shaft, said machine having an exposure window and alens for focusing light to the window, of a casing provided upon themachine between the lens and the exposure window, said casing having anaperture in register with the lens and the exposure window, a box havinga plurality of spaced passages therecasing and to the exposure window,311th friction bearings provided between the walls of the box and'thewalls of the casing, a connecting rod pivoted to the box, two

spaced rollers provided upon the rod, a cam held upon the drive shaft soas to be rotated therewith, said cam havin an irregularly curvedperipheral edge and being movably arranged between the rollers of theconnecting rod so as to contact therewith at intervals for reciprocatingthe connecting rod and the box in the casing, and for alsointermittently checking the movement of the box,

whereby the passages of the box will be alternately registered with theexposure Window of the machine and with the aperture ofthe casing, and aplurality of colored transparent plates, onebeing removably disposedacross each of the passages of the box. This specification signed andwitnessed this nineteenth day of June A. D. 1913.

FREDERICK w. HOGHSTETTER.

Witnesses:

RoB'r. B. ABBOI'I, M. DERMODY.

